I am not sure what this spanner would have been used for but it is very large and /heavy duty - if you know drop me a line - would love to know !!

It's maximum opening is shown on photo - approx 2 3/4 inches and it measures 18 inches long

The logo on this is MB - possibly Miller ??? And it also states 24" and Made in England - see photos

It weighs 2888 grams - almost 3 kilos in weight - very heavy duty !

Great collectible item